1. 77 pairs
2. 77 only
3. 110 pairs
4. 110 only
77 only
1. 1000
2. 1500
3. 2000
4. 3000
2000
1. Charles Weismann
2. Khorana
3. Cohen
4. Paul Berg
Charles Weismann
1. Introns
2. Exons
3. Sensor-sites
4. Anti-cistrons
Introns
1. They can cut DNA at specific base sequence
2. They are proteolytic enzymes which can degrade harmful proteins
3. They are nucleases that cut DNA at varriable sites
4. They can join different DNA fragments
They can cut DNA at specific base sequence
1. Differentiation involves changes in the nuclei which results in loss of expression of few genes
2. Upto a stage,differentiation is reversible
3. Nucleus can undergo differentiation
4. All of the above
All of the above
1. Probe
2. Vector
3. Restriction enzyme
4. Retro virus
Probe
1. Inhibiting transcription of mRNA
2. Inactivating enzymes in the reaction
3. Inhibiting the substrate in the reactions
4. Inhibiting the migration of m-RNA in cytoplasm
Inhibiting transcription of mRNA
1. Humans
2. Birds
3. Bacteria
4. Bacteriophages
Bacteria
1. Availability of cloned DNA
2. Knowledge of human karyotype
3. Occurrence of restriction fragment length polymorphism
4. Pehnotype differences between individuals
Occurrence of restriction fragment length polymorphism